"collegium" is a correct and usable word in written English.
It is most often used to refer to a group of people organized for a specific purpose, such as a college or university. For example, you could say, "The collegium at this university is dedicated to fostering creativity and innovation in the classroom."
In 1928 he was appointed to the collegium of the Commissariat of Education and also was prosecutor at several noted trials of alleged saboteurs and counterrevolutionaries.
As in Leipzig, he reorganized the students' collegium musicum and gave public concerts with the group.
In Hamburg, too, he directed a collegium musicum and presented public concerts.
Telemann reorganized the collegium musicum, the student musical society, into an efficient amateur orchestra that gave public concerts (then a novelty) and became director of the Leipzig Opera, for which he also composed.
Returning to Russia after the February Revolution of 1917, Krupskaya spread Bolshevik propaganda, carried messages from Lenin to his colleagues while he was hiding in Finland (July October), and, after the Bolsheviks seized power (October 1917), became a member of the collegium of the People's Commissariat of Education.
Roman Catholicism relies on the magisterium (teaching authority) of the church, which is directed by the bishops as a "college" (collegium episcoporum) and supremely by the bishop of Rome as their collegial head.
A standing collegium, or commission, was to enforce the law, but implementation was delayed because Tiberius was killed in the year of its passage.
The emperors, viewing the collegia with some suspicion, enacted from the beginning that no collegium could be founded without state authority and that their rights of manumitting slaves and taking legacies be closely regulated.
The tetrarchy was a collegium of emperors comprising two groups: at its head, two Augusti, older men who made the decisions; and, in a secondary position, two Caesars, younger, with a more executive role.
At a closed session of Army generals this spring, he told a collegium of officers that they should set aside any fears that Zyuganov was a mere social democrat, a pink.
But a week ago, after several years of modest success followed by three seasons of minimal activity, the collegium gave up all but the ghost, quietly folding itself into the Clarion Music Society, a venerable organization that is itself emerging from a near-death experience.
